Type of Feat: Class
Prerequisite: Monk 10
Required for: None
Specifics: The character’s unarmed strike attack counts as a magic weapon against creatures with damage reduction (+1 at 10th level, +2 at 13th, +3 at 16th).
As the description indicates, Ki Strike only treats the unarmed attacks as if they were magic weapons for bypassing damage reduction; it does not provide an any Attack Bonus. Magic bracers with an enhancement bonus provide the same ability to bypass DR, so this feat is often not needed.